WO2022152337A1 - Electronic security system - Google Patents
Electronic security system Download PDFInfo
- Publication number
- WO2022152337A1 WO2022152337A1 PCT/CZ2021/050151 CZ2021050151W WO2022152337A1 WO 2022152337 A1 WO2022152337 A1 WO 2022152337A1 CZ 2021050151 W CZ2021050151 W CZ 2021050151W WO 2022152337 A1 WO2022152337 A1 WO 2022152337A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electronic
- portable electronic
- time control
- backup
- memory
- Prior art date
Links
- 230000015654 memory Effects 0.000 claims abstract description 125
- 230000000903 blocking effect Effects 0.000 claims abstract description 12
- 230000004913 activation Effects 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00817—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys where the code of the lock can be programmed
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/20—Individual registration on entry or exit involving the use of a pass
- G07C9/21—Individual registration on entry or exit involving the use of a pass having a variable access code
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/20—Individual registration on entry or exit involving the use of a pass
- G07C9/22—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder
- G07C9/23—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder by means of a password
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C2009/00634—Power supply for the lock
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
- G07C2009/00761—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by connected means, e.g. mechanical contacts, plugs, connectors
Definitions
- the invention relates to an electronic security system provided for locking and unlocking especially locks of objects with the requirement for a maximum degree of security
- the electronic security system comprises at least one portable electronic controller with an internal memory to store a one-time control code, and at least one electronic release unit with a central memory to store a of backup one-off control codes, with a control processor, and with a locking and unlocking actuator, respectively.
- the patent document DE102011103134 (A1) discloses a method of generating a one-time release code to bring an electronic lock from the locked position to the unlocked position.
- the principle of this method is that immediately after the use of the release code stored in the memory of the electronic lock to unlock the lock, a new usable release code is generated by its encryption with the use of an encrypting algorithm and with the application of an encrypting key, the new release code will occupy the position of the old release code in the memory of the electronic key while it must also be stored in the memory of the lock and will be used for the next unlocking of the lock. Thanks to the fact that a new release code is available for every unlocking of the lock, this lock achieves a high security level.
- the subject matter of the invention is an electronic security system, powered by electricity from the mains and/or from an autonomous power supply, and provided for locking and unlocking especially locks of the objects
- the electronic security system comprises at least one portable electronic controller with an internal memory to store a one-time control code, and at least one separately from the portable electronic controller arranged an electronic release unit with a central memory, a control processor for functional communication of the internal memory of the portable electronic controller, with the central memory of the electronic release unit, and with an actuator of this system as well.
- the matter of the invention lies in the fact, that in the central memory of each electronic release unit, a set of backup one-time control codes is stored, the set of the backup one-time control codes is exclusively assigned to one particular portable electronic controller, and its control processor is programmed to pair the one-time control code with the backup one-time control code in the set of the backup one-time control codes to subsequently put the actuator into operation in the case, if in the set of backup one-time codes, there is a still unused backup one-time control code identical to the one-time control code stored in the internal memory of the portable electronic controller, and to replace the used one-time control code in the internal memory of the portable electronic controller with a copy of the next following backup one-time control code from their set stored in the central memory of the electronic release unit.
- the control processor of this system is connected in a wired manner or wirelessly both to the central memory of the electronic release unit and to the actuator, and to the internal memory of the portable electronic controller as well.
- the control processor wired (contact) connection to this internal memory is implementable by means of an activation contact of the electronic release unit and a connection contact of the portable electronic controller.
- the electronic security system comprises a large number of the electronic release units controllable by one portable electronic controller
- an identical set of the backup one-time control codes assigned to this portable electronic controller is always stored in their central memories.
- the control processors of these electronic release units are programmed to put their actuators into operation, if in the set of the backup one-time control codes of the electronic release unit contacted by the portable electronic control, there is still unused backup one-time control code identical to the one-time control code stored in the internal memory of the portable electronic controller, and to replace the used one-time control code in the internal memory of the portable electronic controller with a copy of the next following backup one-time control code from the set of the backup one-time codes stored in the central memory of the contacted electronic release unit.
- the central memories of these electronic release units are divided into memory segments in the number equal to the number of the portable electronic controllers provided to control them.
- One of the memory segments of the relevant electronic release unit is assigned to each of these portable electronic controllers, a unique set of the backup one-time control codes that is assigned exclusively to the said one portable electronic controller being stored in the said memory segment.
- the control processor is programmed to put the actuator into operation if in this particular memory segment of this particular electronic release unit, there is a still unused backup one-time control code identical to the one-time control code stored in the internal memory of the used portable electronic controller, and to replace the just used one-time control code in the internal memory of this portable electronic controller with a copy of the next following backup one-time control code from the set stored in the used memory segment of the contacted release unit.
- the above-mentioned structural arrangements of the electronic security assemblies as wholes and the electronic release units as their physically separated parts make possible to create relatively simple and cost-efficient, but especially very effective and safe security devices.
- the one-time usability of the control code stored in the internal memory of the portable electronic controller and the one-time usability of the control code that is replaced with a copy of a so far unused backup one-time control code from the set of these codes stored in the central memory of the relevant electronic release unit, or in its relevant memory segment, running independently of the human factor ensure perfect protection of the one-time control code from being copied or misused in another way, as the copy of the backup one-time control code that replaces it is not generated from this just used one-time control code, and therefore it is not dependent on it in any way, and therefore it is not traceable, decodable or calculable in any manner either.
- one of significant benefits of the electronic security system according to the present invention is that it also makes possible to control more electronic release units with one portable electronic controller, or conversely, to assign the multiple portable electronic controllers to one electronic release unit for its multiple users.
- benefits of the electronic security system according to the present invention especially comprise that it makes possible to assign the multiple portable electronic controllers with the same as well as different access options to the multiple electronic release units.
- An additional improvement of the security level of the electronic security system according to the present invention is achieved by the fact that the internal memory of the portable electronic controller comprises the own identifier, whose identification data exclusively belong to this portable electronic controller, wherein these identification data are stored in the central memory of the electronic release unit at the same time, where a unique set of backup one-time control codes, also exclusively belonging to this portable electronic controller, is stored separately from the identification data.
- the control processor of the electronic security system conceived in this way is, besides putting the actuator into operation and replacing the used one-time control code with a copy of a backup one-time control code, also programmed to initially verify the authorization of the used portable electronic controller for communication with the electronic release unit based on the verification of the consistency of the identification data of the identifier stored in the internal memory of the portable electronic controller and in the central memory of the electronic release unit.
- the data of its identifier are stored in the central memory of each of these electronic release units.
- the central memories of these electronic release units are divided into segments in numbers corresponding to the numbers of the portable electronic controllers provided to control them.
- the identification data of the identifiers of the particular portable electronic controllers are then stored in the memory segments, assigned to them, of the relevant electronic release unit, or relevant electronic control units, if there are more of them, separately from the unique sets of the backup one-time control codes, which are also stored in them.
- the internal memory of the portable electronic controller can be equipped with a blocking code, without the unblocking of which by means of the entry of the blocking code in an unblocker, the portable electronic controller will not be able to establish communication with the electronic release unit, as a result of which its actuator cannot be actuated.
- the unblocker of this blocking code can then be installed in the manual part of the portable electronic controller.
- the blocking code of the portable electronic controller may preferably be a PIN code, its unblocker being a keypad adapted for entering this PIN code.
- the unique set of mutually different backup one-time control codes may comprise a set of alphanumeric codes composed of any number of any characters that can be registered in an electronic memory, in this case the central memory of the electronic release unit, or subsequently also in the internal memory of the portable electronic controller.
- the composition of the control codes does not need to be limited to the characters of a binary or another numeric system only, but besides the numeric characters, it may also use the characters of all existing alphabets, punctuation marks or other characters that can be written in an electronic memory. This provides the possibility of creating a practically unlimited number of combinations of various characters, and therefore a set of backup one-time control codes of a nearly unlimited size.
- the electronic security system is characterized by individual steps realized especially on the basis of the corresponding programming of the control processor.
- the steps are as follows:
- this determination is enabled by the conversion of a radio, optical or acoustic signal, which is used to send the onetime control code from the portable electronic controller to the contacted electronic release unit, to an electric signal.
- a command is issued by the control processor to replace the just used one-time control code in the internal memory of the portable electronic controller with a copy of the next following backup one-time control code from the set of these codes stored in the central memory of the contacted electronic release unit.
- This copy of the backup one-time control code from their set which is located in the central memory of the contacted electronic release unit, becomes, by being stored in the internal memory of the portable electronic controller, its new one-time control code, i.e. the code which can only be used once, and the set of backup one-time control codes in the central memory of the electronic release unit represents some stack of these control codes that can only be used once.
- Fig. 1 shows a diagram of the system according to the invention in an exemplary embodiment comprising one portable electronic controller and three electronic release units
- Fig. 2 shows a diagram of the system according to the invention in an exemplary embodiment comprising four portable electronic controllers and one electronic release unit;
- Fig. 3 - shows a diagram of the system according to the invention representing a portable electronic controller equipped with a blocking code and a keypad for its unblocking.
- the electronic security system according to the exemplary embodiment, which is schematically shown in Fig. 1 , it comprises one portable electronic controller 1 and three electronic release units 4. It is the electronic security assembly for locking (and of course also unlocking) of three objects, e.g. an apartment, office and garage, owned by one person.
- Each of the control processors 6 is programmed to put into operation the actuator 7 assigned to it, if the match is found between the data of the identifier 10 stored in the internal memory 2 of the portable electronic controller 1 and in the central memory 5 of the relevant electronic release unit 4, and if in the set 8 of the backup one-time control codes located in the central memory 5 of the contacted electronic release unit 4, there is located, at the same time, a still unused backup one-time control code 3 identical to the one-time control code 3 stored in the internal memory 2 of the portable electronic controller 1.
- Each of the control processors 6 is also programmed to replace the just used one-time control code 3 in the internal memory 2 of the portable electronic controller 1 with a copy of the next following one-time control code 3 from the set 8 of the backup one-time control codes stored in the central memory 5 of the contacted electronic release unit 4 in the event that its relevant actuator 7 is put into operation.
- the portable electronic controller 1 is equipped with the connection contact 13, and each electronic control unit 4 is equipped with the activation contact 14.
- the activation contacts 14 of all electronic release units 4 are structurally adapted for mutual mechanical connection to the connection contact 13 of the portable electronic controller 1 (USB contacts), which enables a direct (contact) communication connection between the portable electronic controller 1. and individual electronic release units 4, the control processors 6 of which are connected in a wired manner to both the central memories 5, and the actuators 7.
- the electronic release units 4 are powered with electricity from the mains (not shown in the figure).
- connection contact 13 of the portable electronic controller 1. is firstly plugged into the activation contact 14 of one of the electronic control units 4 depending on which of the objects needs to be unlocked. This operation above will close the communication circuit and an electronic communication is established between the control processor 6 of the relevant electronic release unit 4, its central memory 5 and the internal memory 2 of the portable electronic controller 1_.
- the relevant control processor 6 firstly it is found out whether the data of the identifier 10 contained in the internal memory 2 of the portable electronic controller 1 are identical to its data stored in the central memory 5 of the contacted electronic control unit 4. This operation will verify whether it is an authorized use of the portable electronic controller 1_.
- the relevant control processor 6 is further used to verify whether the one-time control code 3 stored in the internal memory 2 of the portable electronic controller 1 is identical to a still unused backup one-time control code 3 contained in the set 8 of backup one-time control codes stored in the central memory 5 of the contacted electronic release unit 4. If such a still unused backup one-time control code 3 is found in their relevant set 8, the control processor 6 will send a signal to the actuator 7 controlled by it, which will subsequently carry out a pre-determined release action.
- the relevant control processor 6 it is selected from the relevant set 8 of the backup one-time control codes, stored in the central memory 5 of the contacted electronic release unit 4, the next following backup one-time control code 31, and its copy is used to replace the just used one-time control code 3 in the internal memory 2 of the portable electronic controller 1_.
- this copy of the backup one-time control code 31 becomes the new one-time control code 3 ready for a subsequent one-time use.
- the relevant control processor 6 a record of the use is made for the just used backup one-time control code 31 in the central memory 5 of the relevant electronic release unit 4.
- This backup one-time control code 31 that has been used once cannot be used to replace the one-time control code 3 for the second time in spite of the fact that it was not used in the central memories 5 of the remaining electronic release units 4, and it remains in them without a record of such a use.
- this backup one-time control code 31 remains longer unusable in the central memories 5 of their remaining electronic release units 4.
- the electronic security system comprises four portable electronic controllers 1 and one electronic release unit 4 controllable by them. It makes it possible to control one electronic release unit 4, e.g. a door lock, with four portable electronic controllers T
- the portable electronic controllers 1 have the form of external flash disks equipped with connection contacts 13 provided as USB contacts.
- the electronic release unit 4 is equipped with an activation contact 14, also having the form of a USB contact adapted to be connected to the connection contacts 13 of all four portable electronic controllers 1. It is further equipped with a central memory 5 that is divided into four memory segments 9, each of which is provided for one of the portable electronic controllers 1. In these memory segments 9, the data of the identifiers 10 of the assigned portable electronic controllers 1 are stored, and separately from them, also the relevant sets 8 of backup one-time control codes.
- the electronic release unit 4 further comprises the actuator 7 and the control processor 6 that is connected in a wired manner to both the central memory 5, and the actuator 7, and via the activation contact 14 of the electronic release unit 4 and the connection contacts 13 of the portable electronic controllers 1 to their internal memories 2 as well.
- the control processor 6 is programmed to only activate the electronic security system in case, that in one of their memory segments 9, the data of the identifier 10 belonging to the used portable electronic controller 1 are stored.
- the control processor 6 is further programmed to subsequently determine whether in the memory segment 9 identified this way, there is also a still unused backup one-time control code 3 identical to the one-time control code 3 stored in the internal memory 2 of this currently used portable electronic controller 1_. In case of such a match, it will put the actuator 7 into operation.
- control processor 6 is programmed to replace the just used one-time control code 3 in the internal memory 2 of the used portable electronic controller 1 with the next following backup one-time control code 3 from the relevant set 8 of the backup one-time control codes stored in the contacted memory segment 9.
- the electronic release unit 4 is powered with electricity from the mains (not shown in the figure).
- connection contact 13 of one of the portable electronic controllers 1 is plugged into the activation contact 14 of the electronic release unit 4. This will close the communication circuit and communication is established between the control processor 6 and the relevant internal memory 2 of the used portable electronic controller 1_, and at the same time the memory segments 9 of the central memory 5 of the electronic release unit 4 as well.
- the control processor 6 it is first found out whether the identification data of the identifier 10 contained in the internal memory 2 of the used portable electronic controller 1. are stored in one of the memory segments 9 at the same time. If it is not the case, communication will be terminated.
- Another preferred embodiment of the electronic security system consists in that it uses the portable electronic controllers 1 as shown in Fig. 3, the internal memories 2 of which are equipped with the blocking codes 1 1 , advantageously in the form of PIN codes, the unblocker 12 in the form of a keypad adapted to enter this blocking code 11 and arranged preferentially on an outer side of the portable electronic controller 1 is being used for their unblocking.
- the unblocking of the blocking code 1 1 which is performed before every use of the portable electronic controller 1. in such a way that the user, who is the only one to know it, enters it in the unblocker 12, protects the portable electronic controllers 1 from being misused even in case of their loss or theft.
- the electronic security system achieves the maximum security level.
- the blocking code 1 1 may also be a part of the identifier 10 of the portable electronic controller 1 .
- the electronic security system has very wide range of uses. Starting from conventional mechanical or electromechanical locks of building and room doors, through locking mechanisms of safes and bank treasuries, military and other strictly guarded objects, to the access to bank accounts. It can be used everywhere where something should be protected from the access of unauthorized persons. It can also be used to introduce a system of identification of persons, which might replace even the latest versions of personal identity cards or similar identity documents in a more advanced manner.
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/257,708 US20240054831A1 (en) | 2021-01-18 | 2021-12-15 | Electronic security system |
CN202180089776.3A CN117256022A (en) | 2021-01-18 | 2021-12-15 | electronic security system |
EP21836334.9A EP4278334A1 (en) | 2021-01-18 | 2021-12-15 | Electronic security system |
CA3203604A CA3203604A1 (en) | 2021-01-18 | 2021-12-15 | Electronic security system |
JP2023531580A JP2024517366A (en) | 2021-01-18 | 2021-12-15 | Electronic Security Systems |
IL304039A IL304039A (en) | 2021-01-18 | 2021-12-15 | Electronic security system |
ZA2023/05752A ZA202305752B (en) | 2021-01-18 | 2023-05-29 | Electronic security system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CZPV2021-18 | 2021-01-18 | ||
CZ2021-18A CZ309688B6 (en) | 2021-01-18 | 2021-01-18 | Electronic security system |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022152337A1 true WO2022152337A1 (en) | 2022-07-21 |
Family
ID=79259297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CZ2021/050151 WO2022152337A1 (en) | 2021-01-18 | 2021-12-15 | Electronic security system |
Country Status (10)
Country | Link |
---|---|
US (1) | US20240054831A1 (en) |
EP (1) | EP4278334A1 (en) |
JP (1) | JP2024517366A (en) |
CN (1) | CN117256022A (en) |
CA (1) | CA3203604A1 (en) |
CZ (1) | CZ309688B6 (en) |
IL (1) | IL304039A (en) |
LU (1) | LU502789B1 (en) |
WO (1) | WO2022152337A1 (en) |
ZA (1) | ZA202305752B (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999015393A1 (en) * | 1997-09-20 | 1999-04-01 | Curotec Limited | Security system |
US20010028298A1 (en) * | 2000-03-10 | 2001-10-11 | Inqe Liden | Key and lock device |
US6415386B1 (en) * | 1995-07-21 | 2002-07-02 | Yi Shi | Cryptogram lock system with automatically variable true random code tonglingge |
GB2413672A (en) * | 2004-04-28 | 2005-11-02 | Motorola Inc | Access control |
DE102011103134A1 (en) | 2011-05-25 | 2012-11-29 | Beloxx Newtec Gmbh | A method for generating a currently valid, one-time, electronic lock release code |
US20200258335A1 (en) * | 2014-04-07 | 2020-08-13 | Videx, Inc. | Enhanced access control based on key proximity |
-
2021
- 2021-01-18 CZ CZ2021-18A patent/CZ309688B6/en unknown
- 2021-12-15 EP EP21836334.9A patent/EP4278334A1/en active Pending
- 2021-12-15 LU LU502789A patent/LU502789B1/en active IP Right Grant
- 2021-12-15 IL IL304039A patent/IL304039A/en unknown
- 2021-12-15 JP JP2023531580A patent/JP2024517366A/en active Pending
- 2021-12-15 US US18/257,708 patent/US20240054831A1/en active Pending
- 2021-12-15 CA CA3203604A patent/CA3203604A1/en active Pending
- 2021-12-15 WO PCT/CZ2021/050151 patent/WO2022152337A1/en active Application Filing
- 2021-12-15 CN CN202180089776.3A patent/CN117256022A/en active Pending
-
2023
- 2023-05-29 ZA ZA2023/05752A patent/ZA202305752B/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6415386B1 (en) * | 1995-07-21 | 2002-07-02 | Yi Shi | Cryptogram lock system with automatically variable true random code tonglingge |
WO1999015393A1 (en) * | 1997-09-20 | 1999-04-01 | Curotec Limited | Security system |
US20010028298A1 (en) * | 2000-03-10 | 2001-10-11 | Inqe Liden | Key and lock device |
GB2413672A (en) * | 2004-04-28 | 2005-11-02 | Motorola Inc | Access control |
DE102011103134A1 (en) | 2011-05-25 | 2012-11-29 | Beloxx Newtec Gmbh | A method for generating a currently valid, one-time, electronic lock release code |
US20200258335A1 (en) * | 2014-04-07 | 2020-08-13 | Videx, Inc. | Enhanced access control based on key proximity |
Also Published As
Publication number | Publication date |
---|---|
CZ202118A3 (en) | 2022-07-27 |
JP2024517366A (en) | 2024-04-22 |
ZA202305752B (en) | 2024-03-27 |
EP4278334A1 (en) | 2023-11-22 |
US20240054831A1 (en) | 2024-02-15 |
CN117256022A (en) | 2023-12-19 |
LU502789B1 (en) | 2022-11-16 |
IL304039A (en) | 2023-08-01 |
CZ309688B6 (en) | 2023-07-26 |
CA3203604A1 (en) | 2022-07-21 |
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